php file_put_contents ...我不能在开头追加？

Question

<?php
$file = 'people.txt';
// The new person to add to the file
$person = "John Smith
";
// Write the contents to the file, 
// using the FILE_APPEND flag to append the content to the end of the file
// and the LOCK_EX flag to prevent anyone else writing to the file at the same time
 file_put_contents($file, $person, FILE_APPEND | LOCK_EX);
?>

This will append the content at the end of the file. i want to write newest at the beginning of the file.

Answer 1

As the manual page shows, there is no flag to prepend data.

You will need to read the whole file using file_get_contents() first, prepend the value, and save the whole string.